243 lines
7.0 KiB
C
243 lines
7.0 KiB
C
/*
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* Copyright 2008 Michael Lester <element3260@gmail.com>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <string.h>
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#include "gtk/compat.h"
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#include "gtk/window.h"
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#include "gtk/gui.h"
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#include "desktop/browser.h"
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#include "content/content.h"
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#include "desktop/options.h"
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#include "desktop/search.h"
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#include "utils/utils.h"
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#include "gtk/search.h"
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#include "gtk/tabs.h"
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#define TAB_WIDTH_N_CHARS 15
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/** callback to update sizes when style-set gtk signal */
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static void nsgtk_tab_update_size(GtkWidget *hbox, GtkStyle *previous_style,
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GtkWidget *close_button)
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{
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PangoFontMetrics *metrics;
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PangoContext *context;
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int char_width, h, w;
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GtkStyleContext *style;
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GtkStateFlags state;
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state = nsgtk_widget_get_state_flags(hbox);
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style = nsgtk_widget_get_style_context(hbox);
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context = gtk_widget_get_pango_context(hbox);
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metrics = pango_context_get_metrics(context,
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nsgtk_style_context_get_font(style, state),
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pango_context_get_language(context));
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char_width = pango_font_metrics_get_approximate_digit_width(metrics);
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pango_font_metrics_unref(metrics);
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gtk_icon_size_lookup_for_settings(gtk_widget_get_settings (hbox),
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GTK_ICON_SIZE_MENU, &w, &h);
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gtk_widget_set_size_request(hbox,
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TAB_WIDTH_N_CHARS * PANGO_PIXELS(char_width) + 2 * w,
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-1);
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gtk_widget_set_size_request(close_button, w + 4, h + 4);
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}
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/** Create a notebook tab label */
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static GtkWidget *nsgtk_tab_label_setup(struct gui_window *window)
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{
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GtkWidget *hbox, *label, *button, *close;
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hbox = nsgtk_hbox_new(FALSE, 2);
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if (nsoption_bool(new_blank) == true)
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label = gtk_label_new("New Tab");
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else
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label = gtk_label_new("Loading...");
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gtk_label_set_ellipsize(GTK_LABEL(label), PANGO_ELLIPSIZE_END);
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gtk_label_set_single_line_mode(GTK_LABEL(label), TRUE);
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gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
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gtk_misc_set_padding(GTK_MISC(label), 0, 0);
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gtk_widget_show(label);
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button = gtk_button_new();
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close = gtk_image_new_from_stock("gtk-close", GTK_ICON_SIZE_MENU);
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gtk_container_add(GTK_CONTAINER(button), close);
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gtk_button_set_focus_on_click(GTK_BUTTON(button), FALSE);
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gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
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gtk_widget_set_tooltip_text(button, "Close this tab.");
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#ifdef FIXME
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GtkRcStyle *rcstyle;
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rcstyle = gtk_rc_style_new();
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rcstyle->xthickness = rcstyle->ythickness = 0;
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gtk_widget_modify_style(button, rcstyle);
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g_object_unref(rcstyle);
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#endif
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g_signal_connect_swapped(button, "clicked",
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G_CALLBACK(nsgtk_window_destroy_browser), window);
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g_signal_connect(hbox, "style-set",
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G_CALLBACK(nsgtk_tab_update_size), button);
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gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, TRUE, 0);
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gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
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g_object_set_data(G_OBJECT(hbox), "label", label);
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g_object_set_data(G_OBJECT(hbox), "close-button", button);
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nsgtk_window_set_tab(window, hbox);
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gtk_widget_show_all(hbox);
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return hbox;
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}
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/** callback when page is switched */
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static void nsgtk_tab_page_changed(GtkNotebook *notebook, gpointer *page,
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gint page_num)
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{
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GtkWidget *window = gtk_notebook_get_nth_page(notebook, page_num);
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struct gui_window *gw = g_object_get_data(G_OBJECT(window),
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"gui_window");
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if (gw != NULL) {
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nsgtk_scaffolding_set_top_level(gw);
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}
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}
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static void
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nsgtk_tab_orientation(GtkNotebook *notebook)
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{
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switch (nsoption_int(position_tab)) {
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case 0:
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gtk_notebook_set_tab_pos(notebook, GTK_POS_TOP);
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break;
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case 1:
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gtk_notebook_set_tab_pos(notebook, GTK_POS_LEFT);
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break;
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case 2:
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gtk_notebook_set_tab_pos(notebook, GTK_POS_RIGHT);
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break;
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case 3:
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gtk_notebook_set_tab_pos(notebook, GTK_POS_BOTTOM);
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break;
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}
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}
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/** callback to alter tab visibility when pages are added or removed */
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static void
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nsgtk_tab_visibility_update(GtkNotebook *notebook, GtkWidget *child, guint page)
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{
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gint num_pages = gtk_notebook_get_n_pages(notebook);
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if ((nsoption_bool(show_single_tab) == true) || (num_pages > 1)) {
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gtk_notebook_set_show_tabs(notebook, TRUE);
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} else {
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gtk_notebook_set_show_tabs(notebook, FALSE);
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}
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_options_changed(GtkNotebook *notebook)
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{
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nsgtk_tab_orientation(notebook);
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nsgtk_tab_visibility_update(notebook, NULL, 0);
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_init(GtkNotebook *notebook)
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{
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g_signal_connect(notebook, "switch-page",
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G_CALLBACK(nsgtk_tab_page_changed), NULL);
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g_signal_connect(notebook, "page-removed",
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G_CALLBACK(nsgtk_tab_visibility_update), NULL);
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g_signal_connect(notebook, "page-added",
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G_CALLBACK(nsgtk_tab_visibility_update), NULL);
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nsgtk_tab_options_changed(notebook);
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_add(struct gui_window *window,
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GtkWidget *tab_contents, bool background)
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{
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GtkWidget *tabs = GTK_WIDGET(nsgtk_scaffolding_notebook(
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nsgtk_get_scaffold(window)));
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GtkWidget *tabBox = nsgtk_tab_label_setup(window);
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gint remember = gtk_notebook_get_current_page(GTK_NOTEBOOK(tabs));
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gtk_notebook_append_page(GTK_NOTEBOOK(tabs), tab_contents, tabBox);
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/*causes gtk errors can't set a parent */
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gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(tabs),
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tab_contents,
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true);
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gtk_widget_show_all(tab_contents);
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gtk_notebook_set_current_page(GTK_NOTEBOOK(tabs),
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gtk_notebook_get_n_pages(GTK_NOTEBOOK(tabs)) - 1);
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if (background) {
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gtk_notebook_set_current_page(GTK_NOTEBOOK(tabs), remember);
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}
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gtk_widget_grab_focus(GTK_WIDGET(nsgtk_scaffolding_urlbar(
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nsgtk_get_scaffold(window))));
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_set_title(struct gui_window *g, const char *title)
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{
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GtkWidget *label;
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GtkWidget *tab;
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tab = nsgtk_window_get_tab(g);
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if (tab == NULL) {
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return;
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}
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label = g_object_get_data(G_OBJECT(tab), "label");
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gtk_label_set_text(GTK_LABEL(label), title);
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gtk_widget_set_tooltip_text(tab, title);
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_close_current(GtkNotebook *notebook)
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{
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gint curr_page = gtk_notebook_get_current_page(notebook);
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GtkWidget *window = gtk_notebook_get_nth_page(notebook, curr_page);
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struct gui_window *gw = g_object_get_data(G_OBJECT(window),
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"gui_window");
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if (gtk_notebook_get_n_pages(notebook) < 2)
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return; /* wicked things happen if we close the last tab */
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nsgtk_window_destroy_browser(gw);
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/* deletes 2 notebook tabs at a time!
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gtk_notebook_remove_page(notebook, curr_page); */
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}
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